Recitation Problem Set 1

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Recitation Problem Set 1 Chl Name: 21 ERN A - [ 4 SIS . Write the following in scientific notation: 0.00007 1,07 /)(fj /0000300, 2,00 y o~ 24000__2. 4 xJp ¥ 240000. ), 4/ 0000 ) /'g' 5050 5,04 xo° . Write the following in standard notation: 800x10° 0000 1.00x10% __0.000]O0 6% 10° 609000 1x10)_0,000| . Perform the following calculations and report the answer to the appropriate number of significant figures. 32615+0033+221+1213=3(,,07] 73+193+486+1.0056= 3|5, 6654 %o7) % 33.8+1.712+3.41591 = 38 q274) (11756 +2.51 +3.14159 + 100.11 > 106.G37149 ' \_//'/4/ 354 (166, 94 . Conversion Factors Calculate the number of mL in 1 m* (1 mL =1 cm?, 100 cm = 1 m) I3 /mom \3 o j = |00o000 Calculate the number of mm in 1 km. (10* mm = 1 m) | kmy (0067, 000 Km m = ]/ 00go0O
Calculate the number of cm in one fm (10'* fm = 1 m) E ) I 100¢ v / / M ¥ /"/I ? 'Y S— /,J // y Fm ? liv Calculate the )lumber of ng (10° ng = 1 g) in one Mg (10° g = 1 Mg) 4 0%, 109 ' 15 /m,,) P4 '»,./ Ly // ) Wi Ij J/ Calculate the number of A (10'° A= 1m)inonecm. | = /09Cm | 4 ;l/ ey Im W0 (1 v /(/'{;[W' /,/y; 5. The density of lead is 11.34 g/cm®. Calculate: The mass of 54 cm? of lead [ y The volume of 12.96 g of lead £ ] )~ = '({, ,:r{/_~ £ A //' /], I ,/ J 6. Dimensional Analysis ' 2 A. Suppose that gasoline costs $2.25 per gallon. Your car gets 34 miles per gallon. How many gallons of gas do you need to drive 375 miles? "o ) [ ] % / e J/ 75 [ 14 ¥ How much will gasoline cost to drive 1000 miles? {2/,'\/ |ooog ¢ (-//(/I// 7(9(/('»/ ;C'(// /'// Jie How many miles can you drive on 27 gallons of gas? %) =, /7 A7 vkt B A - Q70 miles ~— How far can you drive on wonh,oflgas?g:\ 1 sellens V20U a0 - ik b
B. A jet airplane has a velocity of 1145 knots. A knot is 1 nautical mile (nm)/hr. A nautical mile is 6076 fcct Aninch i is 2.54 ¢cm. Calculate the velocity of the aircraft in m/q 1Y% Toft , |2 C. Thave a roof that measures 175 ft by 45 ft. During the hurricane 11 inches of rain fell 1 mL=1cm'. 20 drops = 1 mL. How many raindrops fell on my roof? |75 YU x Il = 721%6.75 £+ YR X (5 2 17 29 Ul ] ./)(j ////// //()'/ Y"J =9l 27 :'/ i "'; /', O= WA DL { Y /7 { ¥ 4 L/W{) {cuf) D. One US gallonis 3.79 L. 1 mL =1 cm'. If one gallon of paint needs to cover 280 fi2 how thick is the layer of paint? Report your answer in mm. 7L st B i T 57490cm 2760=266/285 2x | ZKOWX 12578 2601 28572 00145647 =X Lm 1 /J /0 m_ 7 Oltem 4 r™=( |5 it 7. Temperature Conversions (do the work even if you know the answer in your head) A. Convert 98.6°F to °C TL = %(TP ,370)//) _05'//( éé@) = 3 7 O C) B. Convert 212°F to °C T = 5 62/2 /323 56180> = m\ (™74 b , C. Convert 0°F to °C T (0 -32) 5_'( 81 = ) 507 D. Convert 0°C to °K. Or Y 2 2OA\> E. Convert 98.6°Fto °K 1~ - -2 (906-32)= 37° 1273 = GTo% ~
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